Answer:
144 ft^2
Step-by-step explanation:
property of 45-45-90 triangle: side lengths are 12rt2
12rt2*12rt2/2=144
The factored form of given equation y = x^2 + 4x - 21 is (x + 7)(x – 3)
<u>Solution:</u>
Given, equation is 
We have to factor the above equation
Now, take the expression 
"4x" can be splitted as (7 - 3)x
"21" can rewritten as 
Taking "x" as common from first two terms and "3" as common from next two terms
Taking "x + 7" as common term,
Hence, the factored form of given equation is y = ( x + 7 )( x – 3 )
5x70=5x7tens.
60x4=6tensx4.
7x30=7x3tens.
90x3=9tensx3.
8 teaspoons, you make the ratio 1:2. then fill it in as x:16, for every 1 teaspoon of vinager you have 2 of mayo. so you'd need to make sure than x, would make 1:2 true. 8:16 is the solution because reduced it is 1:2.
Answer:
In 286 different ways 10 players can be selected.
Step-by-step explanation:
There are 6 girls and 7 boys in a class. So in total there are 6+7 = 13 number of students in the class.
A team of 10 players is to be selected from the class.
As there is no other conditions are given, we can pick any 10 students from 13 students.
The way we can select 10 players from 13 students is;
= (13 10)
= 13!/10!(13-10)!
= 13!/10! 3!
= (13 × 12 × 11 × 10!)/ 10! 3!
= ( 13 × 12 × 11)/6
= 286
